./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:24:56,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:24:56,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:24:56,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:24:56,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:24:56,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:24:56,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:24:56,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:24:56,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:24:56,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:24:56,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:24:56,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:24:56,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:24:56,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:24:56,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:24:56,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:24:56,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:24:56,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:24:56,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:24:56,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:24:56,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:24:56,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:24:56,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:24:56,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:24:56,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:24:56,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:24:56,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:24:56,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:24:56,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:24:56,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:24:56,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:24:56,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:24:56,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:24:56,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:24:56,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:24:56,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:24:56,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:24:56,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:24:56,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:24:56,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:24:56,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:24:56,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:24:56,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:24:56,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:24:56,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:24:56,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:24:56,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:24:56,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:24:56,310 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:24:56,311 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:24:56,311 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:24:56,311 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:24:56,312 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:24:56,312 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:24:56,312 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:24:56,313 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:24:56,313 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:24:56,313 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:24:56,313 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:24:56,313 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:24:56,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:24:56,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:24:56,314 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:24:56,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:24:56,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:24:56,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:24:56,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:24:56,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:24:56,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:24:56,318 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:24:56,318 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:24:56,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:24:56,318 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:24:56,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:24:56,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:24:56,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:24:56,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:24:56,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:24:56,320 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:24:56,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:24:56,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:24:56,320 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:24:56,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:24:56,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:24:56,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:24:56,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2022-11-03 02:24:56,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:24:56,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:24:56,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:24:56,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:24:56,679 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:24:56,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-03 02:24:56,757 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/data/ed3177793/11a5399269a6469092e2a9ef19498a1d/FLAG44b06eb10 [2022-11-03 02:24:57,337 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:24:57,337 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-03 02:24:57,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/data/ed3177793/11a5399269a6469092e2a9ef19498a1d/FLAG44b06eb10 [2022-11-03 02:24:57,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/data/ed3177793/11a5399269a6469092e2a9ef19498a1d [2022-11-03 02:24:57,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:24:57,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:24:57,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:24:57,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:24:57,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:24:57,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:24:57" (1/1) ... [2022-11-03 02:24:57,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3c7378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:57, skipping insertion in model container [2022-11-03 02:24:57,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:24:57" (1/1) ... [2022-11-03 02:24:57,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:24:57,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:24:58,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-03 02:24:58,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:24:58,077 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:24:58,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-03 02:24:58,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:24:58,194 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:24:58,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58 WrapperNode [2022-11-03 02:24:58,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:24:58,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:24:58,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:24:58,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:24:58,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,306 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 661 [2022-11-03 02:24:58,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:24:58,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:24:58,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:24:58,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:24:58,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,390 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:24:58,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:24:58,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:24:58,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:24:58,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (1/1) ... [2022-11-03 02:24:58,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:24:58,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:24:58,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:24:58,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_603b4c94-35de-4f02-aa93-cd21eaf3e9da/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:24:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:24:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:24:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:24:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:24:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:24:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:24:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-03 02:24:58,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-03 02:24:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-03 02:24:58,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-03 02:24:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-03 02:24:58,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-03 02:24:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:24:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 02:24:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 02:24:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:24:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:24:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:24:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:24:58,497 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:24:58,722 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:24:58,725 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:24:59,921 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:25:00,363 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:25:00,364 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-03 02:25:00,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:25:00 BoogieIcfgContainer [2022-11-03 02:25:00,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:25:00,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:25:00,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:25:00,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:25:00,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:24:57" (1/3) ... [2022-11-03 02:25:00,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1301ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:25:00, skipping insertion in model container [2022-11-03 02:25:00,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:58" (2/3) ... [2022-11-03 02:25:00,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1301ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:25:00, skipping insertion in model container [2022-11-03 02:25:00,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:25:00" (3/3) ... [2022-11-03 02:25:00,385 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-11-03 02:25:00,395 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:25:00,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:25:00,423 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2022-11-03 02:25:00,423 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:25:00,633 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-03 02:25:00,695 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:25:00,712 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 616 places, 642 transitions, 1308 flow [2022-11-03 02:25:00,721 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 616 places, 642 transitions, 1308 flow [2022-11-03 02:25:00,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 642 transitions, 1308 flow [2022-11-03 02:25:01,115 INFO L130 PetriNetUnfolder]: 36/639 cut-off events. [2022-11-03 02:25:01,115 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-03 02:25:01,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 639 events. 36/639 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2049 event pairs, 0 based on Foata normal form. 0/516 useless extension candidates. Maximal degree in co-relation 490. Up to 2 conditions per place. [2022-11-03 02:25:01,195 INFO L118 LiptonReduction]: Number of co-enabled transitions 69132 [2022-11-03 02:27:16,905 INFO L133 LiptonReduction]: Checked pairs total: 533876 [2022-11-03 02:27:16,906 INFO L135 LiptonReduction]: Total number of compositions: 764 [2022-11-03 02:27:16,918 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 222 places, 231 transitions, 486 flow [2022-11-03 02:27:51,817 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1027845 states, 1007935 states have (on average 4.143507269814026) internal successors, (4176386), 1027844 states have internal predecessors, (4176386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:27:51,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:27:51,862 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@ebca6f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:27:51,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 151 error locations. [2022-11-03 02:27:53,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 1027845 states, 1007935 states have (on average 4.143507269814026) internal successors, (4176386), 1027844 states have internal predecessors, (4176386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:27:53,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:27:53,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:53,180 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:27:53,181 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-03 02:27:53,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:53,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2932, now seen corresponding path program 1 times [2022-11-03 02:27:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:53,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718315715] [2022-11-03 02:27:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:53,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:27:53,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:53,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718315715] [2022-11-03 02:27:53,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718315715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:53,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:27:53,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:27:53,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983303882] [2022-11-03 02:27:53,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:53,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:27:53,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:53,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:27:53,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:27:55,122 INFO L87 Difference]: Start difference. First operand has 1027845 states, 1007935 states have (on average 4.143507269814026) internal successors, (4176386), 1027844 states have internal predecessors, (4176386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)